f(x) = x² + 1; g(x) = x² - 1

find
a) ((f+g) of h)) (x)
b) ((f-g) of h)) (x)
c) ((f of h) - (g of h)) (x)

Jackie

I'm not sure if I understand what you are asking. I am confused by the term "of h". If part a) is to find (f+g)(x) then the answer is